The 7th day of the Feast of Tabernacles, Festival of Willows (Hoshana Rabbah)
21st day of the seventh month.
Considered by Jewish custom to be the final day of judgment. A ritual of beating willow branches on the ground is practiced, which is thought to symbolize the casting away of sin.
The 8th day of the Feast of Tabernacles (Shemini Atzeret)
22nd day of the seventh month.
Lev 23:36,39, Num 29:35

Reference: The Biblical Feast Days. Retrieved on Feb. 29, 2016. http://biblelight.net/feasts.html

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